[ThinLTO] Add additional ThinLTO pipeline testing with new PM

[tejohnson]

Summary

I've added some more extensive ThinLTO pipeline testing with the new PM,
motivated by the bug fixed in D72386.

I beefed up llvm/test/Other/new-pm-pgo.ll a little so that it tests
ThinLTO pre and post link with PGO, similar to the testing for the
default pipelines with PGO.

Added new pre and post link PGO tests for both instrumentation and
sample PGO that exhaustively test the pipelines at different
optimization levels via opt.

Added a clang test to exhaustively test the post link pipeline invoked for
distributed builds. I am currently only testing O2 and O3 since these
are the most important for performance.

It would be nice to add similar exhaustive testing for full LTO, and for
the old PM, but I don't have the bandwidth now and this is a start to
cover some of the situations that are not currently default and were
under tested.

[tejohnson]

Remove some cruft

[wmi]

The additional pipeline testing will catch any future pass change to the pipeline. A related but separate question is do we have a way to check whether there is any other missing pass in thinlto newpm similar as that in D72386?

clang/test/CodeGen/thinlto-distributed-newpm.ll

12

Can we test %clang intead of %clang_cc1? so we don't have to add flags like -vectorize-slp and -vectorize-loops. clang O2/O3 pipeline is something we care about. Those flags added by clang to cc1 options may be subject to change.

[tejohnson]

In D72538#1815074, @wmi wrote:

The additional pipeline testing will catch any future pass change to the pipeline. A related but separate question is do we have a way to check whether there is any other missing pass in thinlto newpm similar as that in D72386?

Unfortunately not. That will take some painstaking comparisons between the pass debug output between the old and new PMs, which is going to be manual given the different format and structuring of the dependences. I am going to try to do that at least for a few important cases. As you noted, this is to help flag any future changes (although the last one did actually result in a test being changed, but it looks like no one realized the implications). Hopefully by having additional testing it will be more likely to trigger concerns if it happens again.

clang/test/CodeGen/thinlto-distributed-newpm.ll

12

Good idea, done

[tejohnson]

Implement suggestion.

[wmi]

LGTM.

[nikic]

Would it be possible to cut down the Clang side tests to only check parts that Clang controls in some way, e.g. that SLPVectorizer is enabled? This test is something of a PITA because it tests LLVM implementation details but is not part of the LLVM tests, so it usually gets missed when doing pipeline changes.

[tejohnson]

In D72538#4291552, @nikic wrote:

Would it be possible to cut down the Clang side tests to only check parts that Clang controls in some way, e.g. that SLPVectorizer is enabled? This test is something of a PITA because it tests LLVM implementation details but is not part of the LLVM tests, so it usually gets missed when doing pipeline changes.

I think we can cut this down significantly, since the llvm tests added here check the full ThinLTO default pipeline setup at different opt levels. However, the point of the clang test is to make sure that for a distributed ThinLTO backend we correctly invoke thinBackend() which should set up the ThinLTO default pipeline. So how about I cut this down to check a single pass that is only invoked in the LTO backends? Specifically, I'm thinking of WholeProgramDevirtPass.

[nikic]

In D72538#4296119, @tejohnson wrote:

In D72538#4291552, @nikic wrote:

Would it be possible to cut down the Clang side tests to only check parts that Clang controls in some way, e.g. that SLPVectorizer is enabled? This test is something of a PITA because it tests LLVM implementation details but is not part of the LLVM tests, so it usually gets missed when doing pipeline changes.

I think we can cut this down significantly, since the llvm tests added here check the full ThinLTO default pipeline setup at different opt levels. However, the point of the clang test is to make sure that for a distributed ThinLTO backend we correctly invoke thinBackend() which should set up the ThinLTO default pipeline. So how about I cut this down to check a single pass that is only invoked in the LTO backends? Specifically, I'm thinking of WholeProgramDevirtPass.

That sounds reasonable to me!

[tejohnson]

In D72538#4296277, @nikic wrote:

In D72538#4296119, @tejohnson wrote:

In D72538#4291552, @nikic wrote:

Would it be possible to cut down the Clang side tests to only check parts that Clang controls in some way, e.g. that SLPVectorizer is enabled? This test is something of a PITA because it tests LLVM implementation details but is not part of the LLVM tests, so it usually gets missed when doing pipeline changes.

I think we can cut this down significantly, since the llvm tests added here check the full ThinLTO default pipeline setup at different opt levels. However, the point of the clang test is to make sure that for a distributed ThinLTO backend we correctly invoke thinBackend() which should set up the ThinLTO default pipeline. So how about I cut this down to check a single pass that is only invoked in the LTO backends? Specifically, I'm thinking of WholeProgramDevirtPass.

That sounds reasonable to me!

Done in e5b0276dc882f7c5b2a349e2f02abf16b1d41322

[nikic]

Thanks!

clang/test/CodeGen/thinlto-distributed-newpm.ll

+; REQUIRES: x86-registered-target
+
+; Validate ThinLTO post link pipeline at O2 and O3
+
+; RUN: opt -thinlto-bc -o %t.o %s
+
+; RUN: llvm-lto2 run -thinlto-distributed-indexes %t.o \
+; RUN:   -o %t2.index \
+; RUN:   -r=%t.o,main,px
+
+; RUN: %clang -target x86_64-grtev4-linux-gnu \
+; RUN:   -O2 -fexperimental-new-pass-manager -Xclang -fdebug-pass-manager \
+; RUN:   -c -fthinlto-index=%t.o.thinlto.bc \
+; RUN:   -o %t.native.o -x ir %t.o 2>&1 | FileCheck -check-prefixes=CHECK-O,CHECK-O2 %s
+
+; RUN: %clang -target x86_64-grtev4-linux-gnu \
+; RUN:   -O3 -fexperimental-new-pass-manager -Xclang -fdebug-pass-manager \
+; RUN:   -c -fthinlto-index=%t.o.thinlto.bc \
+; RUN:   -o %t.native.o -x ir %t.o 2>&1 | FileCheck -check-prefixes=CHECK-O,CHECK-O3 %s
+
+; CHECK-O: Running analysis: PassInstrumentationAnalysis
+; CHECK-O: Starting llvm::Module pass manager run.
+; CHECK-O: Running pass: WholeProgramDevirtPass
+; CHECK-O: Running analysis: InnerAnalysisManagerProxy<llvm::FunctionAnalysisManager, llvm::Module>
+; CHECK-O: Running pass: LowerTypeTestsPass
+; CHECK-O: Invalidating all non-preserved analyses for:
+; CHECK-O: Invalidating analysis: InnerAnalysisManagerProxy<llvm::FunctionAnalysisManager, llvm::Module>
+; CHECK-O: Running pass: ForceFunctionAttrsPass
+; CHECK-O: Running pass: PassManager<llvm::Module>
+; CHECK-O: Starting llvm::Module pass manager run.
+; CHECK-O: Running pass: PGOIndirectCallPromotion
+; CHECK-O: Running analysis: ProfileSummaryAnalysis
+; CHECK-O: Running analysis: InnerAnalysisManagerProxy<llvm::FunctionAnalysisManager, llvm::Module>
+; CHECK-O: Running analysis: OptimizationRemarkEmitterAnalysis on main
+; CHECK-O: Running analysis: PassInstrumentationAnalysis on main
+; CHECK-O: Running pass: InferFunctionAttrsPass
+; CHECK-O: Running pass: ModuleToFunctionPassAdaptor<llvm::PassManager<llvm::Function> >
+; CHECK-O: Starting llvm::Function pass manager run.
+; CHECK-O: Running pass: SimplifyCFGPass on main
+; CHECK-O: Running analysis: TargetIRAnalysis on main
+; CHECK-O: Running analysis: AssumptionAnalysis on main
+; CHECK-O: Running pass: SROA on main
+; CHECK-O: Running analysis: DominatorTreeAnalysis on main
+; CHECK-O: Running pass: EarlyCSEPass on main
+; CHECK-O: Running analysis: TargetLibraryAnalysis on main
+; CHECK-O: Running pass: LowerExpectIntrinsicPass on main
+; CHECK-O3: Running pass: CallSiteSplittingPass on main
+; CHECK-O: Finished llvm::Function pass manager run.
+; CHECK-O: Running pass: IPSCCPPass
+; CHECK-O: Running pass: CalledValuePropagationPass
+; CHECK-O: Running pass: GlobalOptPass
+; CHECK-O: Invalidating all non-preserved analyses for:
+; CHECK-O: Invalidating analysis: InnerAnalysisManagerProxy<llvm::FunctionAnalysisManager, llvm::Module>
+; CHECK-O: Running pass: ModuleToFunctionPassAdaptor<llvm::PromotePass>
+; CHECK-O: Running analysis: InnerAnalysisManagerProxy<llvm::FunctionAnalysisManager, llvm::Module>
+; CHECK-O: Running analysis: DominatorTreeAnalysis on main
+; CHECK-O: Running analysis: PassInstrumentationAnalysis on main
+; CHECK-O: Running analysis: AssumptionAnalysis on main
+; CHECK-O: Running pass: DeadArgumentEliminationPass
+; CHECK-O: Running pass: ModuleToFunctionPassAdaptor<llvm::PassManager<llvm::Function> >
+; CHECK-O: Starting llvm::Function pass manager run.
+; CHECK-O: Running pass: InstCombinePass on main
+; CHECK-O: Running analysis: TargetLibraryAnalysis on main
+; CHECK-O: Running analysis: OptimizationRemarkEmitterAnalysis on main
+; CHECK-O: Running analysis: AAManager on main
+; CHECK-O: Running analysis: BasicAA on main
+; CHECK-O: Running analysis: ScopedNoAliasAA on main
+; CHECK-O: Running analysis: TypeBasedAA on main
+; CHECK-O: Running analysis: OuterAnalysisManagerProxy<llvm::ModuleAnalysisManager, llvm::Function> on main
+; CHECK-O: Running pass: SimplifyCFGPass on main
+; CHECK-O: Running analysis: TargetIRAnalysis on main
+; CHECK-O: Finished llvm::Function pass manager run.
+; CHECK-O: Running pass: RequireAnalysisPass<llvm::GlobalsAA, llvm::Module, llvm::AnalysisManager<llvm::Module>>
+; CHECK-O: Running analysis: GlobalsAA
+; CHECK-O: Running analysis: CallGraphAnalysis
+; CHECK-O: Running pass: RequireAnalysisPass<llvm::ProfileSummaryAnalysis, llvm::Module, llvm::AnalysisManager<llvm::Module>>
+; CHECK-O: Running pass: ModuleToPostOrderCGSCCPassAdaptor<llvm::DevirtSCCRepeatedPass<llvm::PassManager<LazyCallGraph::SCC, llvm::CGSCCAnalysisManager, llvm::LazyCallGraph &, llvm::CGSCCUpdateResult &> > >
+; CHECK-O: Running analysis: InnerAnalysisManagerProxy<llvm::CGSCCAnalysisManager, llvm::Module>
+; CHECK-O: Running analysis: LazyCallGraphAnalysis
+; CHECK-O: Running analysis: FunctionAnalysisManagerCGSCCProxy on (main)
+; CHECK-O: Running analysis: PassInstrumentationAnalysis on (main)
+; CHECK-O: Running analysis: OuterAnalysisManagerProxy<llvm::ModuleAnalysisManager, LazyCallGraph::SCC, llvm::LazyCallGraph &> on (main)
+; CHECK-O: Starting CGSCC pass manager run.
+; CHECK-O: Running pass: InlinerPass on (main)
+; CHECK-O: Running pass: PostOrderFunctionAttrsPass on (main)
+; CHECK-O: Invalidating all non-preserved analyses for: (main)
+; CHECK-O: Clearing all analysis results for: main
+; CHECK-O: Invalidating analysis: FunctionAnalysisManagerCGSCCProxy on (main)
+; CHECK-O3: Running pass: ArgumentPromotionPass on (main)
+; CHECK-O2: Running pass: CGSCCToFunctionPassAdaptor<llvm::PassManager<llvm::Function> > on (main)
+; CHECK-O: Running analysis: FunctionAnalysisManagerCGSCCProxy on (main)
+; CHECK-O3: Running analysis: TargetIRAnalysis on main
+; CHECK-O: Running analysis: PassInstrumentationAnalysis on main
+; CHECK-O3: Running pass: CGSCCToFunctionPassAdaptor<llvm::PassManager<llvm::Function> > on (main)
+; CHECK-O: Starting llvm::Function pass manager run.
+; CHECK-O: Running pass: SROA on main
+; CHECK-O: Running analysis: DominatorTreeAnalysis on main
+; CHECK-O: Running analysis: AssumptionAnalysis on main
+; CHECK-O: Running pass: EarlyCSEPass on main
+; CHECK-O: Running analysis: TargetLibraryAnalysis on main
+; CHECK-O2: Running analysis: TargetIRAnalysis on main
+; CHECK-O: Running analysis: MemorySSAAnalysis on main
+; CHECK-O: Running analysis: AAManager on main
+; CHECK-O: Running analysis: BasicAA on main
+; CHECK-O: Running analysis: ScopedNoAliasAA on main
+; CHECK-O: Running analysis: TypeBasedAA on main
+; CHECK-O: Running analysis: OuterAnalysisManagerProxy<llvm::ModuleAnalysisManager, llvm::Function> on main
+; CHECK-O: Running pass: SpeculativeExecutionPass on main
+; CHECK-O: Running pass: JumpThreadingPass on main
+; CHECK-O: Running analysis: LazyValueAnalysis on main
+; CHECK-O: Running pass: CorrelatedValuePropagationPass on main
+; CHECK-O: Running pass: SimplifyCFGPass on main
+; CHECK-O3: Running pass: AggressiveInstCombinePass on main
+; CHECK-O: Running pass: InstCombinePass on main
+; CHECK-O: Running analysis: OptimizationRemarkEmitterAnalysis on main
+; CHECK-O: Running pass: LibCallsShrinkWrapPass on main
+; CHECK-O: Running pass: TailCallElimPass on main
+; CHECK-O: Running pass: SimplifyCFGPass on main
+; CHECK-O: Running pass: ReassociatePass on main
+; CHECK-O: Running pass: RequireAnalysisPass<llvm::OptimizationRemarkEmitterAnalysis, llvm::Function, llvm::AnalysisManager<llvm::Function>> on main
+; CHECK-O: Running pass: FunctionToLoopPassAdaptor<llvm::PassManager<llvm::Loop, llvm::LoopAnalysisManager, llvm::LoopStandardAnalysisResults &, llvm::LPMUpdater &> > on main
+; CHECK-O: Starting llvm::Function pass manager run.
+; CHECK-O: Running pass: LoopSimplifyPass on main
+; CHECK-O: Running analysis: LoopAnalysis on main
+; CHECK-O: Running pass: LCSSAPass on main
+; CHECK-O: Finished llvm::Function pass manager run.
+; CHECK-O: Running pass: SimplifyCFGPass on main
+; CHECK-O: Running pass: InstCombinePass on main
+; CHECK-O: Running pass: FunctionToLoopPassAdaptor<llvm::PassManager<llvm::Loop, llvm::LoopAnalysisManager, llvm::LoopStandardAnalysisResults &, llvm::LPMUpdater &> > on main
+; CHECK-O: Starting llvm::Function pass manager run.
+; CHECK-O: Running pass: LoopSimplifyPass on main
+; CHECK-O: Running pass: LCSSAPass on main
+; CHECK-O: Finished llvm::Function pass manager run.
+; CHECK-O: Running pass: SROA on main
+; CHECK-O: Running pass: MergedLoadStoreMotionPass on main
+; CHECK-O: Running pass: GVN on main
+; CHECK-O: Running analysis: MemoryDependenceAnalysis on main
+; CHECK-O: Running analysis: PhiValuesAnalysis on main
+; CHECK-O: Running pass: MemCpyOptPass on main
+; CHECK-O: Running pass: SCCPPass on main
+; CHECK-O: Running pass: BDCEPass on main
+; CHECK-O: Running analysis: DemandedBitsAnalysis on main
+; CHECK-O: Running pass: InstCombinePass on main
+; CHECK-O: Running pass: JumpThreadingPass on main
+; CHECK-O: Running pass: CorrelatedValuePropagationPass on main
+; CHECK-O: Running pass: DSEPass on main
+; CHECK-O: Running pass: FunctionToLoopPassAdaptor<llvm::LICMPass> on main
+; CHECK-O: Starting llvm::Function pass manager run.
+; CHECK-O: Running pass: LoopSimplifyPass on main
+; CHECK-O: Running pass: LCSSAPass on main
+; CHECK-O: Finished llvm::Function pass manager run.
+; CHECK-O: Running pass: ADCEPass on main
+; CHECK-O: Running analysis: PostDominatorTreeAnalysis on main
+; CHECK-O: Running pass: SimplifyCFGPass on main
+; CHECK-O: Running pass: InstCombinePass on main
+; CHECK-O: Finished llvm::Function pass manager run.
+; CHECK-O: Finished CGSCC pass manager run.
+; CHECK-O: Invalidating all non-preserved analyses for:
+; CHECK-O: Invalidating all non-preserved analyses for: main
+; CHECK-O: Invalidating analysis: DominatorTreeAnalysis on main
+; CHECK-O: Invalidating analysis: BasicAA on main
+; CHECK-O: Invalidating analysis: AAManager on main
+; CHECK-O: Invalidating analysis: MemorySSAAnalysis on main
+; CHECK-O: Invalidating analysis: LazyValueAnalysis on main
+; CHECK-O: Invalidating analysis: LoopAnalysis on main
+; CHECK-O: Invalidating analysis: PhiValuesAnalysis on main
+; CHECK-O: Invalidating analysis: MemoryDependenceAnalysis on main
+; CHECK-O: Invalidating analysis: DemandedBitsAnalysis on main
+; CHECK-O: Invalidating analysis: PostDominatorTreeAnalysis on main
+; CHECK-O: Invalidating analysis: CallGraphAnalysis
+; CHECK-O: Invalidating analysis: GlobalsAA
+; CHECK-O: Finished llvm::Module pass manager run.
+; CHECK-O: Running pass: PassManager<llvm::Module>
+; CHECK-O: Starting llvm::Module pass manager run.
+; CHECK-O: Running pass: GlobalOptPass
+; CHECK-O: Running analysis: DominatorTreeAnalysis on main
+; CHECK-O: Running pass: GlobalDCEPass
+; CHECK-O: Running pass: EliminateAvailableExternallyPass
+; CHECK-O: Running pass: ReversePostOrderFunctionAttrsPass
+; CHECK-O: Running analysis: CallGraphAnalysis
+; CHECK-O: Running pass: RequireAnalysisPass<llvm::GlobalsAA, llvm::Module, llvm::AnalysisManager<llvm::Module>>
+; CHECK-O: Running analysis: GlobalsAA
+; CHECK-O: Running pass: ModuleToFunctionPassAdaptor<llvm::PassManager<llvm::Function> >
+; CHECK-O: Starting llvm::Function pass manager run.
+; CHECK-O: Running pass: Float2IntPass on main
+; CHECK-O: Running pass: LowerConstantIntrinsicsPass on main
+; CHECK-O: Running pass: FunctionToLoopPassAdaptor<llvm::LoopRotatePass> on main
+; CHECK-O: Starting llvm::Function pass manager run.
+; CHECK-O: Running pass: LoopSimplifyPass on main
+; CHECK-O: Running analysis: LoopAnalysis on main
+; CHECK-O: Running pass: LCSSAPass on main
+; CHECK-O: Finished llvm::Function pass manager run.
+; CHECK-O: Running pass: LoopDistributePass on main
+; CHECK-O: Running analysis: ScalarEvolutionAnalysis on main
+; CHECK-O: Running analysis: AAManager on main
+; CHECK-O: Running analysis: BasicAA on main
+; CHECK-O: Running analysis: InnerAnalysisManagerProxy<llvm::LoopAnalysisManager, llvm::Function> on main
+; CHECK-O: Running pass: LoopVectorizePass on main
+; CHECK-O: Running analysis: BlockFrequencyAnalysis on main
+; CHECK-O: Running analysis: BranchProbabilityAnalysis on main
+; CHECK-O: Running analysis: DemandedBitsAnalysis on main
+; CHECK-O: Running analysis: MemorySSAAnalysis on main
+; CHECK-O: Running pass: LoopLoadEliminationPass on main
+; CHECK-O: Running pass: InstCombinePass on main
+; CHECK-O: Running pass: SimplifyCFGPass on main
+; CHECK-O: Running pass: SLPVectorizerPass on main
+; CHECK-O: Running pass: InstCombinePass on main
+; CHECK-O: Running pass: LoopUnrollPass on main
+; CHECK-O: Running pass: WarnMissedTransformationsPass on main
+; CHECK-O: Running pass: InstCombinePass on main
+; CHECK-O: Running pass: RequireAnalysisPass<llvm::OptimizationRemarkEmitterAnalysis, llvm::Function, llvm::AnalysisManager<llvm::Function>> on main
+; CHECK-O: Running pass: FunctionToLoopPassAdaptor<llvm::LICMPass> on main
+; CHECK-O: Starting llvm::Function pass manager run.
+; CHECK-O: Running pass: LoopSimplifyPass on main
+; CHECK-O: Running pass: LCSSAPass on main
+; CHECK-O: Finished llvm::Function pass manager run.
+; CHECK-O: Running pass: AlignmentFromAssumptionsPass on main
+; CHECK-O: Running pass: LoopSinkPass on main
+; CHECK-O: Running pass: InstSimplifyPass on main
+; CHECK-O: Running pass: DivRemPairsPass on main
+; CHECK-O: Running pass: SimplifyCFGPass on main
+; CHECK-O: Running pass: SpeculateAroundPHIsPass on main
+; CHECK-O: Finished llvm::Function pass manager run.
+; CHECK-O: Running pass: CGProfilePass
+; CHECK-O: Running pass: GlobalDCEPass
+; CHECK-O: Running pass: ConstantMergePass
+; CHECK-O: Finished llvm::Module pass manager run.
+; CHECK-O: Finished llvm::Module pass manager run.
+
+target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-grtev4-linux-gnu"
+
+define i32 @main() {
+entry:
+  ret i32 0
+}

llvm/test/Other/Inputs/new-pm-thinlto-prelink-pgo-defaults.proftext

+:ir

llvm/test/Other/Inputs/new-pm-thinlto-samplepgo-defaults.prof

+foo:0:0

llvm/test/Other/new-pm-pgo.ll

 ; RUN: opt -debug-pass-manager -passes='default<O2>' -pgo-kind=pgo-instr-gen-pipeline -profile-file='temp' %s 2>&1 |FileCheck %s --check-prefixes=GEN
 ; RUN: llvm-profdata merge %S/Inputs/new-pm-pgo.proftext -o %t.profdata
 ; RUN: opt -debug-pass-manager -passes='default<O2>' -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' %s 2>&1 |FileCheck %s --check-prefixes=USE
+; RUN: opt -debug-pass-manager -passes='thinlto-pre-link<O2>' -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' %s 2>&1 |FileCheck %s --check-prefixes=USE
+; RUN: opt -debug-pass-manager -passes='thinlto<O2>' -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' %s 2>&1 |FileCheck %s --check-prefixes=USE_POST_LINK
 ; RUN: opt -debug-pass-manager -passes='default<O2>' -hot-cold-split -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' %s 2>&1 |FileCheck %s --check-prefixes=USE --check-prefixes=SPLIT
 ; RUN: opt -debug-pass-manager -passes='default<O2>' -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-pgo.prof' %s 2>&1 \
 ; RUN:     |FileCheck %s --check-prefixes=SAMPLE_USE,SAMPLE_USE_O
 ; RUN: opt -debug-pass-manager -passes='thinlto-pre-link<O2>' -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-pgo.prof' %s 2>&1 \
 ; RUN:     |FileCheck %s --check-prefixes=SAMPLE_USE,SAMPLE_USE_PRE_LINK
 ; RUN: opt -debug-pass-manager -passes='thinlto<O2>' -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-pgo.prof' %s 2>&1 \
 ; RUN:     |FileCheck %s --check-prefixes=SAMPLE_USE,SAMPLE_USE_POST_LINK
 ; RUN: opt -debug-pass-manager -passes='default<O2>' -new-pm-debug-info-for-profiling %s 2>&1 |FileCheck %s --check-prefixes=SAMPLE_GEN
 ;
 ; GEN: Running pass: PGOInstrumentationGen
 ; USE: Running pass: PGOInstrumentationUse
 ; USE: Running pass: PGOIndirectCallPromotion
 ; USE: Running pass: PGOMemOPSizeOpt
+; USE_POST_LINK: Running pass: PGOIndirectCallPromotion
+; USE_POST_LINK: Running pass: PGOMemOPSizeOpt
 ; SAMPLE_USE_O: Running pass: ModuleToFunctionPassAdaptor<{{.*}}AddDiscriminatorsPass{{.*}}>
 ; SAMPLE_USE_PRE_LINK: Running pass: ModuleToFunctionPassAdaptor<{{.*}}AddDiscriminatorsPass{{.*}}>
 ; SAMPLE_USE: Running pass: SimplifyCFGPass
 ; SAMPLE_USE: Running pass: SROA
 ; SAMPLE_USE: Running pass: EarlyCSEPass
 ; SAMPLE_USE: Running pass: LowerExpectIntrinsicPass
 ; SAMPLE_USE_POST_LINK: Running pass: InstCombinePass
 ; SAMPLE_USE: Running pass: SampleProfileLoaderPass
 ; SAMPLE_USE_O: Running pass: PGOIndirectCallPromotion
 ; SAMPLE_USE_POST_LINK-NOT: Running pass: GlobalOptPass
 ; SAMPLE_USE_POST_LINK: Running pass: PGOIndirectCallPromotion
+; SAMPLE_USE_PRE_LINK-NOT: Running pass: PGOIndirectCallPromotion
 ; SAMPLE_GEN: Running pass: ModuleToFunctionPassAdaptor<{{.*}}AddDiscriminatorsPass{{.*}}>
 ; SPLIT: Running pass: HotColdSplittingPass
 
 define void @foo() {
   ret void
 }

llvm/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll

+; Validate ThinLTO post link pipeline when we have instrumentation PGO
+;
+; Postlink pipelines:
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -passes='thinlto<O1>' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -passes='thinlto<O2>' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager -passes-ep-pipeline-start='no-op-module' \
+; RUN:     -passes='thinlto<O3>' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -passes='thinlto<Os>' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-Os,CHECK-O23SZ,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -passes='thinlto<Oz>' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-Oz,CHECK-O23SZ,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager -new-pm-debug-info-for-profiling \
+; RUN:     -passes='thinlto<O2>' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,%llvmcheckext
+;
+; CHECK-O: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass
+; CHECK-EP-PIPELINE-START-NEXT: Running pass: NoOpModulePass
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: PGOIndirectCallPromotion
+; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running analysis: TargetIRAnalysis
+; CHECK-O-NEXT: Running analysis: AssumptionAnalysis
+; CHECK-O-NEXT: Running pass: SROA
+; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis
+; CHECK-O-NEXT: Running pass: EarlyCSEPass
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
+; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass
+; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: IPSCCPPass
+; CHECK-O-NEXT: Running pass: CalledValuePropagationPass
+; CHECK-O-NEXT: Running pass: GlobalOptPass
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PromotePass>
+; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running analysis: AAManager
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
+; CHECK-O-NEXT: Running analysis: BlockFrequencyAnalysis on foo
+; CHECK-O-NEXT: Running analysis: BranchProbabilityAnalysis on foo
+; CHECK-O-NEXT: Running analysis: LoopAnalysis on foo
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
+; CHECK-O-NEXT: Running analysis: GlobalsAA
+; CHECK-O-NEXT: Running analysis: CallGraphAnalysis
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
+; CHECK-O-NEXT: Running pass: ModuleToPostOrderCGSCCPassAdaptor<{{.*}}LazyCallGraph{{.*}}>
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
+; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}>
+; CHECK-O-NEXT: Starting CGSCC pass manager run.
+; CHECK-O-NEXT: Running pass: InlinerPass
+; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
+; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
+; CHECK-O-NEXT: Running pass: CGSCCToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SROA
+; CHECK-O-NEXT: Running pass: EarlyCSEPass
+; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis
+; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass
+; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
+; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
+; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O3-NEXT: Running pass: AggressiveInstCombinePass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: ReassociatePass
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running analysis: ScalarEvolutionAnalysis
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Starting Loop pass manager run.
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass
+; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass
+; CHECK-O-NEXT: Running pass: LoopRotatePass
+; CHECK-O-NEXT: Running pass: LICM
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
+; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass
+; CHECK-O-NEXT: Finished Loop pass manager run.
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Starting Loop pass manager run.
+; CHECK-O-NEXT: Running pass: IndVarSimplifyPass
+; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass
+; CHECK-O-NEXT: Running pass: LoopDeletionPass
+; CHECK-O-NEXT: Running pass: LoopFullUnrollPass
+; CHECK-O-NEXT: Finished Loop pass manager run.
+; CHECK-O-NEXT: Running pass: SROA on foo
+; CHECK-Os-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-Os-NEXT: Running pass: GVN
+; CHECK-Os-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-Os-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-Oz-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-Oz-NEXT: Running pass: GVN
+; CHECK-Oz-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-Oz-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O2-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-O2-NEXT: Running pass: GVN
+; CHECK-O2-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O2-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O3-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-O3-NEXT: Running pass: GVN
+; CHECK-O3-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O3-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O-NEXT: Running pass: MemCpyOptPass
+; CHECK-O1-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O1-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O-NEXT: Running pass: SCCPPass
+; CHECK-O-NEXT: Running pass: BDCEPass
+; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
+; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
+; CHECK-O23SZ-NEXT: Running pass: DSEPass
+; CHECK-O23SZ-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LICMPass{{.*}}>
+; CHECK-O23SZ-NEXT: Starting llvm::Function pass manager run
+; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O23SZ-NEXT: Running pass: LCSSAPass
+; CHECK-O23SZ-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: ADCEPass
+; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Finished CGSCC pass manager run.
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: GlobalOptPass
+; CHECK-O-NEXT: Running pass: GlobalDCEPass
+; CHECK-O-NEXT: Running pass: EliminateAvailableExternallyPass
+; CHECK-O-NEXT: Running pass: ReversePostOrderFunctionAttrsPass
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: Float2IntPass
+; CHECK-O-NEXT: Running pass: LowerConstantIntrinsicsPass
+; CHECK-EXT: Running pass: {{.*}}::Bye
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopRotatePass
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopDistributePass
+; CHECK-O-NEXT: Running pass: LoopVectorizePass
+; CHECK-O-NEXT: Running pass: LoopLoadEliminationPass
+; CHECK-O-NEXT: Running analysis: LoopAccessAnalysis
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O2-NEXT: Running pass: SLPVectorizerPass
+; CHECK-O3-NEXT: Running pass: SLPVectorizerPass
+; CHECK-Os-NEXT: Running pass: SLPVectorizerPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: LoopUnrollPass
+; CHECK-O-NEXT: Running pass: WarnMissedTransformationsPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LICMPass
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: AlignmentFromAssumptionsPass
+; CHECK-O-NEXT: Running pass: LoopSinkPass
+; CHECK-O-NEXT: Running pass: InstSimplifyPass
+; CHECK-O-NEXT: Running pass: DivRemPairsPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: SpeculateAroundPHIsPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: CGProfilePass
+; CHECK-O-NEXT: Running pass: GlobalDCEPass
+; CHECK-O-NEXT: Running pass: ConstantMergePass
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: PrintModulePass
+
+; Make sure we get the IR back out without changes when we print the module.
+; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr {
+; CHECK-O-NEXT: entry:
+; CHECK-O-NEXT:   br label %loop
+; CHECK-O:      loop:
+; CHECK-O-NEXT:   %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+; CHECK-O-NEXT:   %iv.next = add i32 %iv, 1
+; CHECK-O-NEXT:   tail call void @bar()
+; CHECK-O-NEXT:   %cmp = icmp eq i32 %iv, %n
+; CHECK-O-NEXT:   br i1 %cmp, label %exit, label %loop
+; CHECK-O:      exit:
+; CHECK-O-NEXT:   ret void
+; CHECK-O-NEXT: }
+;
+; Ignore a bunch of intervening metadata containing profile data.
+;
+; CHECK-O: Finished llvm::Module pass manager run.
+
+declare void @bar() local_unnamed_addr
+
+define void @foo(i32 %n) local_unnamed_addr {
+entry:
+  br label %loop
+loop:
+  %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+  %iv.next = add i32 %iv, 1
+  tail call void @bar()
+  %cmp = icmp eq i32 %iv, %n
+  br i1 %cmp, label %exit, label %loop
+exit:
+  ret void
+}
+
+!llvm.module.flags = !{!0}
+
+!0 = !{i32 1, !"ProfileSummary", !1}
+!1 = !{!2, !3, !4, !5, !6, !7, !8, !9}
+!2 = !{!"ProfileFormat", !"InstrProf"}
+!3 = !{!"TotalCount", i64 0}
+!4 = !{!"MaxCount", i64 0}
+!5 = !{!"MaxInternalCount", i64 0}
+!6 = !{!"MaxFunctionCount", i64 0}
+!7 = !{!"NumCounts", i64 0}
+!8 = !{!"NumFunctions", i64 0}
+!9 = !{!"DetailedSummary", !10}
+!10 = !{!11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26}
+!11 = !{i32 10000, i64 0, i32 0}
+!12 = !{i32 100000, i64 0, i32 0}
+!13 = !{i32 200000, i64 0, i32 0}
+!14 = !{i32 300000, i64 0, i32 0}
+!15 = !{i32 400000, i64 0, i32 0}
+!16 = !{i32 500000, i64 0, i32 0}
+!17 = !{i32 600000, i64 0, i32 0}
+!18 = !{i32 700000, i64 0, i32 0}
+!19 = !{i32 800000, i64 0, i32 0}
+!20 = !{i32 900000, i64 0, i32 0}
+!21 = !{i32 950000, i64 0, i32 0}
+!22 = !{i32 990000, i64 0, i32 0}
+!23 = !{i32 999000, i64 0, i32 0}
+!24 = !{i32 999900, i64 0, i32 0}
+!25 = !{i32 999990, i64 0, i32 0}
+!26 = !{i32 999999, i64 0, i32 0}

llvm/test/Other/new-pm-thinlto-postlink-samplepgo-defaults.ll

+; Validate ThinLTO postlink pipeline when we have Sample PGO
+;
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto<O1>' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto<O2>' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager -passes-ep-pipeline-start='no-op-module' \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto<O3>' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto<Os>' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-Os,CHECK-O23SZ,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto<Oz>' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-Oz,CHECK-O23SZ,%llvmcheckext
+; RUN: opt -disable-verify -debug-pass-manager -new-pm-debug-info-for-profiling \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto<O2>' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,%llvmcheckext
+;
+; CHECK-O: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass
+; CHECK-EP-PIPELINE-START-NEXT: Running pass: NoOpModulePass
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running analysis: TargetIRAnalysis
+; CHECK-O-NEXT: Running analysis: AssumptionAnalysis
+; CHECK-O-NEXT: Running pass: SROA
+; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis
+; CHECK-O-NEXT: Running pass: EarlyCSEPass
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
+; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass
+; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass
+; CHECK-O-NEXT: Running pass: InstCombinePass on foo
+; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis on foo
+; CHECK-O-NEXT: Running analysis: AAManager on foo
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<llvm::ModuleAnalysisManager, llvm::Function> on foo
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SampleProfileLoaderPass
+; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
+; CHECK-O-NEXT: Running analysis: CallGraphAnalysis
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<llvm::ProfileSummaryAnalysis, llvm::Module, llvm::AnalysisManager<llvm::Module>>
+; CHECK-O-NEXT: Running pass: PGOIndirectCallPromotion
+; CHECK-O-NEXT: Running pass: IPSCCPPass
+; CHECK-O-NEXT: Running pass: CalledValuePropagationPass
+; CHECK-O-NEXT: Running pass: GlobalOptPass
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PromotePass>
+; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running analysis: BlockFrequencyAnalysis on foo
+; CHECK-O-NEXT: Running analysis: BranchProbabilityAnalysis on foo
+; CHECK-O-NEXT: Running analysis: LoopAnalysis on foo
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass on foo
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
+; CHECK-O-NEXT: Running analysis: GlobalsAA
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
+; CHECK-O-NEXT: Running pass: ModuleToPostOrderCGSCCPassAdaptor<{{.*}}LazyCallGraph{{.*}}>
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
+; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}>
+; CHECK-O-NEXT: Starting CGSCC pass manager run.
+; CHECK-O-NEXT: Running pass: InlinerPass
+; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
+; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
+; CHECK-O-NEXT: Running pass: CGSCCToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SROA
+; CHECK-O-NEXT: Running pass: EarlyCSEPass
+; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis
+; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass
+; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
+; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
+; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O3-NEXT: Running pass: AggressiveInstCombinePass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: ReassociatePass
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running analysis: ScalarEvolutionAnalysis
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Starting Loop pass manager run.
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass
+; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass
+; CHECK-O-NEXT: Running pass: LoopRotatePass
+; CHECK-O-NEXT: Running pass: LICM
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
+; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass
+; CHECK-O-NEXT: Finished Loop pass manager run.
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Starting Loop pass manager run.
+; CHECK-O-NEXT: Running pass: IndVarSimplifyPass
+; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass
+; CHECK-O-NEXT: Running pass: LoopDeletionPass
+; CHECK-O-NEXT: Running pass: LoopFullUnrollPass
+; CHECK-O-NEXT: Finished Loop pass manager run.
+; CHECK-O-NEXT: Running pass: SROA on foo
+; CHECK-Os-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-Os-NEXT: Running pass: GVN
+; CHECK-Os-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-Os-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-Oz-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-Oz-NEXT: Running pass: GVN
+; CHECK-Oz-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-Oz-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O2-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-O2-NEXT: Running pass: GVN
+; CHECK-O2-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O2-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O3-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-O3-NEXT: Running pass: GVN
+; CHECK-O3-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O3-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O-NEXT: Running pass: MemCpyOptPass
+; CHECK-O1-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O1-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O-NEXT: Running pass: SCCPPass
+; CHECK-O-NEXT: Running pass: BDCEPass
+; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
+; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
+; CHECK-O23SZ-NEXT: Running pass: DSEPass
+; CHECK-O23SZ-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LICMPass{{.*}}>
+; CHECK-O23SZ-NEXT: Starting llvm::Function pass manager run
+; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O23SZ-NEXT: Running pass: LCSSAPass
+; CHECK-O23SZ-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: ADCEPass
+; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O3-NEXT: Running pass: ControlHeightReductionPass on foo
+; CHECK-O3-NEXT: Running analysis: RegionInfoAnalysis on foo
+; CHECK-O3-NEXT: Running analysis: DominanceFrontierAnalysis on foo
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Finished CGSCC pass manager run.
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: GlobalOptPass
+; CHECK-O-NEXT: Running pass: GlobalDCEPass
+; CHECK-O-NEXT: Running pass: EliminateAvailableExternallyPass
+; CHECK-O-NEXT: Running pass: ReversePostOrderFunctionAttrsPass
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: Float2IntPass
+; CHECK-O-NEXT: Running pass: LowerConstantIntrinsicsPass
+; CHECK-EXT: Running pass: {{.*}}::Bye
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopRotatePass
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopDistributePass
+; CHECK-O-NEXT: Running pass: LoopVectorizePass
+; CHECK-O-NEXT: Running pass: LoopLoadEliminationPass
+; CHECK-O-NEXT: Running analysis: LoopAccessAnalysis
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O2-NEXT: Running pass: SLPVectorizerPass
+; CHECK-O3-NEXT: Running pass: SLPVectorizerPass
+; CHECK-Os-NEXT: Running pass: SLPVectorizerPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: LoopUnrollPass
+; CHECK-O-NEXT: Running pass: WarnMissedTransformationsPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LICMPass
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: AlignmentFromAssumptionsPass
+; CHECK-O-NEXT: Running pass: LoopSinkPass
+; CHECK-O-NEXT: Running pass: InstSimplifyPass
+; CHECK-O-NEXT: Running pass: DivRemPairsPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: SpeculateAroundPHIsPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: CGProfilePass
+; CHECK-O-NEXT: Running pass: GlobalDCEPass
+; CHECK-O-NEXT: Running pass: ConstantMergePass
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: PrintModulePass
+
+; Make sure we get the IR back out without changes when we print the module.
+; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr
+; CHECK-O-NEXT: entry:
+; CHECK-O-NEXT:   br label %loop
+; CHECK-O:      loop:
+; CHECK-O-NEXT:   %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+; CHECK-O-NEXT:   %iv.next = add i32 %iv, 1
+; CHECK-O-NEXT:   tail call void @bar()
+; CHECK-O-NEXT:   %cmp = icmp eq i32 %iv, %n
+; CHECK-O-NEXT:   br i1 %cmp, label %exit, label %loop
+; CHECK-O:      exit:
+; CHECK-O-NEXT:   ret void
+; CHECK-O-NEXT: }
+;
+; Ignore a bunch of intervening metadata containing profile data.
+;
+; CHECK-O: Finished llvm::Module pass manager run.
+
+declare void @bar() local_unnamed_addr
+
+define void @foo(i32 %n) local_unnamed_addr {
+entry:
+  br label %loop
+loop:
+  %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+  %iv.next = add i32 %iv, 1
+  tail call void @bar()
+  %cmp = icmp eq i32 %iv, %n
+  br i1 %cmp, label %exit, label %loop
+exit:
+  ret void
+}

llvm/test/Other/new-pm-thinlto-prelink-pgo-defaults.ll

+; Validate ThinLTO prelink pipeline when we have instrumentation PGO
+;
+; RUN: llvm-profdata merge %S/Inputs/new-pm-thinlto-prelink-pgo-defaults.proftext -o %t.profdata
+;
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' \
+; RUN:     -passes='thinlto-pre-link<O1>,name-anon-globals' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,CHECK-O-NODIS,CHECK-O123
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' \
+; RUN:     -passes='thinlto-pre-link<O2>,name-anon-globals' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-O-NODIS,CHECK-O123
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' \
+; RUN:     -passes='thinlto-pre-link<O3>,name-anon-globals' -S -passes-ep-pipeline-start='no-op-module' %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-O-NODIS,CHECK-O123,CHECK-EP-PIPELINE-START
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' \
+; RUN:     -passes='thinlto-pre-link<Os>,name-anon-globals' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-Os,CHECK-O23SZ,CHECK-O-NODIS
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' \
+; RUN:     -passes='thinlto-pre-link<Oz>,name-anon-globals' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-Oz,CHECK-O23SZ,CHECK-O-NODIS
+; RUN: opt -disable-verify -debug-pass-manager -new-pm-debug-info-for-profiling \
+; RUN:     -pgo-kind=pgo-instr-use-pipeline -profile-file='%t.profdata' \
+; RUN:     -passes='thinlto-pre-link<O2>,name-anon-globals' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-DIS,CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-O123
+;
+; CHECK-O: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass
+; CHECK-EP-PIPELINE-START-NEXT: Running pass: NoOpModulePass
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running analysis: TargetIRAnalysis
+; CHECK-O-NEXT: Running analysis: AssumptionAnalysis
+; CHECK-O-NEXT: Running pass: SROA
+; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis
+; CHECK-O-NEXT: Running pass: EarlyCSEPass
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
+; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass
+; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: IPSCCPPass
+; CHECK-O-NEXT: Running pass: CalledValuePropagationPass
+; CHECK-O-NEXT: Running pass: GlobalOptPass
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PromotePass>
+; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis
+; CHECK-O-NEXT: Running analysis: AAManager
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O123-NEXT: Running pass: ModuleToPostOrderCGSCCPassAdaptor<llvm::PassManager<LazyCallGraph::SCC, llvm::CGSCCAnalysisManager, llvm::LazyCallGraph &, llvm::CGSCCUpdateResult &> >
+; CHECK-O123-NEXT: Running analysis: InnerAnalysisManagerProxy<llvm::CGSCCAnalysisManager, llvm::Module>
+; CHECK-O123-NEXT: Running analysis: LazyCallGraphAnalysis
+; CHECK-O123-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy on (foo)
+; CHECK-O123-NEXT: Running analysis: PassInstrumentationAnalysis on (foo)
+; CHECK-O123-NEXT: Running analysis: OuterAnalysisManagerProxy<llvm::ModuleAnalysisManager, LazyCallGraph::SCC, llvm::LazyCallGraph &> on (foo)
+; CHECK-O123-NEXT: Starting CGSCC pass manager run.
+; CHECK-O123-NEXT: Running pass: InlinerPass on (foo)
+; CHECK-O123-NEXT: Running pass: CGSCCToFunctionPassAdaptor<llvm::PassManager<llvm::Function> > on (foo)
+; CHECK-O123-NEXT: Finished CGSCC pass manager run.
+; CHECK-O123-NEXT: Running pass: GlobalDCEPass
+; CHECK-O-NEXT: Running pass: PGOInstrumentationUse
+; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
+; CHECK-O-NEXT: Running analysis: BranchProbabilityAnalysis on foo
+; CHECK-O-NEXT: Running analysis: LoopAnalysis on foo
+; CHECK-O-NEXT: Running analysis: BlockFrequencyAnalysis on foo
+; CHECK-O-NEXT: Invalidating all non-preserved analyses for:
+; CHECK-O-NEXT: Invalidating analysis: InnerAnalysisManagerProxy<llvm::FunctionAnalysisManager, llvm::Module> on
+; CHECK-O123-NEXT: Invalidating analysis: LazyCallGraphAnalysis on
+; CHECK-O123-NEXT: Invalidating analysis: InnerAnalysisManagerProxy<llvm::CGSCCAnalysisManager, llvm::Module> on
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<llvm::ProfileSummaryAnalysis, llvm::Module, llvm::AnalysisManager<llvm::Module>> on
+; CHECK-O-NEXT: Running pass: PGOIndirectCallPromotion on
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy<llvm::FunctionAnalysisManager, llvm::Module> on
+; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis on foo
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis on foo
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
+; CHECK-O-NEXT: Running analysis: GlobalsAA
+; CHECK-O-NEXT: Running analysis: CallGraphAnalysis
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
+; CHECK-O-NEXT: Running pass: ModuleToPostOrderCGSCCPassAdaptor<{{.*}}LazyCallGraph{{.*}}>
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis on foo
+; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}>
+; CHECK-O-NEXT: Starting CGSCC pass manager run.
+; CHECK-O-NEXT: Running pass: InlinerPass
+; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
+; CHECK-O-NEXT: Running analysis: AAManager on foo
+; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
+; CHECK-O3-NEXT: Running analysis: TargetIRAnalysis
+; CHECK-O-NEXT: Running pass: CGSCCToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SROA
+; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis on foo
+; CHECK-O-NEXT: Running analysis: AssumptionAnalysis on foo
+; CHECK-O-NEXT: Running pass: EarlyCSEPass
+; CHECK-O1-NEXT: Running analysis: TargetIRAnalysis on foo
+; CHECK-O2-NEXT: Running analysis: TargetIRAnalysis on foo
+; CHECK-Os-NEXT: Running analysis: TargetIRAnalysis on foo
+; CHECK-Oz-NEXT: Running analysis: TargetIRAnalysis on foo
+; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis
+; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass
+; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
+; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
+; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O3-NEXT: Running pass: AggressiveInstCombinePass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<llvm::ModuleAnalysisManager, llvm::Function> on foo
+; CHECK-O-NEXT: Running analysis: BlockFrequencyAnalysis on foo
+; CHECK-O-NEXT: Running analysis: BranchProbabilityAnalysis on foo
+; CHECK-O-NEXT: Running analysis: LoopAnalysis on foo
+; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O2-NEXT: Running pass: PGOMemOPSizeOpt
+; CHECK-O3-NEXT: Running pass: PGOMemOPSizeOpt
+; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: ReassociatePass
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running analysis: ScalarEvolutionAnalysis
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Starting Loop pass manager run.
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass
+; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass
+; CHECK-O-NEXT: Running pass: LoopRotatePass
+; CHECK-O-NEXT: Running pass: LICM
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
+; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass
+; CHECK-O-NEXT: Finished Loop pass manager run.
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Starting Loop pass manager run.
+; CHECK-O-NEXT: Running pass: IndVarSimplifyPass
+; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass
+; CHECK-O-NEXT: Running pass: LoopDeletionPass
+; CHECK-O-NEXT: Running pass: LoopFullUnrollPass
+; CHECK-O-NEXT: Finished Loop pass manager run.
+; CHECK-O-NEXT: Running pass: SROA on foo
+; CHECK-Os-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-Os-NEXT: Running pass: GVN
+; CHECK-Os-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-Os-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-Oz-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-Oz-NEXT: Running pass: GVN
+; CHECK-Oz-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-Oz-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O2-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-O2-NEXT: Running pass: GVN
+; CHECK-O2-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O2-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O3-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-O3-NEXT: Running pass: GVN
+; CHECK-O3-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O3-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O-NEXT: Running pass: MemCpyOptPass
+; CHECK-O1-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O1-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O-NEXT: Running pass: SCCPPass
+; CHECK-O-NEXT: Running pass: BDCEPass
+; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
+; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
+; CHECK-O23SZ-NEXT: Running pass: DSEPass
+; CHECK-O23SZ-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LICMPass{{.*}}>
+; CHECK-O23SZ-NEXT: Starting llvm::Function pass manager run
+; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O23SZ-NEXT: Running pass: LCSSAPass
+; CHECK-O23SZ-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: ADCEPass
+; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O3-NEXT: Running pass: ControlHeightReductionPass on foo
+; CHECK-O3-NEXT: Running analysis: RegionInfoAnalysis on foo
+; CHECK-O3-NEXT: Running analysis: DominanceFrontierAnalysis on foo
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Finished CGSCC pass manager run.
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: GlobalOptPass
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis on bar
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis on bar
+; CHECK-EXT: Running pass: {{.*}}::Bye
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: NameAnonGlobalPass
+; CHECK-O-NEXT: Running pass: PrintModulePass
+
+; Make sure we get the IR back out without changes when we print the module.
+; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr {
+; CHECK-O-NEXT: entry:
+; CHECK-O-NEXT:   br label %loop
+; CHECK-O:      loop:
+; CHECK-O-NEXT:   %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+; CHECK-O-NEXT:   %iv.next = add i32 %iv, 1
+; CHECK-O-NEXT:   tail call void @bar()
+; CHECK-O-NEXT:   %cmp = icmp eq i32 %iv, %n
+; CHECK-O-NEXT:   br i1 %cmp, label %exit, label %loop
+; CHECK-O:      exit:
+; CHECK-O-NEXT:   ret void
+; CHECK-O-NEXT: }
+;
+; Ignore a bunch of intervening metadata containing profile data.
+;
+; CHECK-O: Finished llvm::Module pass manager run.
+
+declare void @bar() local_unnamed_addr
+
+define void @foo(i32 %n) local_unnamed_addr {
+entry:
+  br label %loop
+loop:
+  %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+  %iv.next = add i32 %iv, 1
+  tail call void @bar()
+  %cmp = icmp eq i32 %iv, %n
+  br i1 %cmp, label %exit, label %loop
+exit:
+  ret void
+}

llvm/test/Other/new-pm-thinlto-prelink-samplepgo-defaults.ll

+; Validate ThinLTO prelink pipeline when we have Sample PGO
+;
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto-pre-link<O1>,name-anon-globals' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,CHECK-O-NODIS,CHECK-O123
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto-pre-link<O2>,name-anon-globals' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-O-NODIS,CHECK-O123
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto-pre-link<O3>,name-anon-globals' -S -passes-ep-pipeline-start='no-op-module' %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-O-NODIS,CHECK-O123,CHECK-EP-PIPELINE-START
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto-pre-link<Os>,name-anon-globals' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-Os,CHECK-O23SZ,CHECK-O-NODIS
+; RUN: opt -disable-verify -debug-pass-manager \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto-pre-link<Oz>,name-anon-globals' -S %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-O,CHECK-Oz,CHECK-O23SZ,CHECK-O-NODIS
+; RUN: opt -disable-verify -debug-pass-manager -new-pm-debug-info-for-profiling \
+; RUN:     -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
+; RUN:     -passes='thinlto-pre-link<O2>,name-anon-globals' -S  %s 2>&1 \
+; RUN:     | FileCheck %s --check-prefixes=CHECK-DIS,CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-O123
+;
+; CHECK-O: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<llvm::AddDiscriminatorsPass>
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-EP-PIPELINE-START-NEXT: Running pass: NoOpModulePass
+; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running analysis: TargetIRAnalysis
+; CHECK-O-NEXT: Running analysis: AssumptionAnalysis
+; CHECK-O-NEXT: Running pass: SROA
+; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis
+; CHECK-O-NEXT: Running pass: EarlyCSEPass
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
+; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass
+; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass
+; CHECK-O-NEXT: Running pass: InstCombinePass on foo
+; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis on foo
+; CHECK-O-NEXT: Running analysis: AAManager on foo
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<llvm::ModuleAnalysisManager, llvm::Function> on foo
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SampleProfileLoaderPass
+; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
+; CHECK-O-NEXT: Running analysis: CallGraphAnalysis
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<llvm::ProfileSummaryAnalysis, llvm::Module, llvm::AnalysisManager<llvm::Module>>
+; CHECK-O-NEXT: Running pass: IPSCCPPass
+; CHECK-O-NEXT: Running pass: CalledValuePropagationPass
+; CHECK-O-NEXT: Running pass: GlobalOptPass
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PromotePass>
+; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass
+; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running analysis: BlockFrequencyAnalysis on foo
+; CHECK-O-NEXT: Running analysis: BranchProbabilityAnalysis on foo
+; CHECK-O-NEXT: Running analysis: LoopAnalysis on foo
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass on foo
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
+; CHECK-O-NEXT: Running analysis: GlobalsAA
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
+; CHECK-O-NEXT: Running pass: ModuleToPostOrderCGSCCPassAdaptor<{{.*}}LazyCallGraph{{.*}}>
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
+; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}>
+; CHECK-O-NEXT: Starting CGSCC pass manager run.
+; CHECK-O-NEXT: Running pass: InlinerPass
+; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
+; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
+; CHECK-O-NEXT: Running pass: CGSCCToFunctionPassAdaptor<{{.*}}PassManager{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run.
+; CHECK-O-NEXT: Running pass: SROA
+; CHECK-O-NEXT: Running pass: EarlyCSEPass
+; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis
+; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass
+; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
+; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
+; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O3-NEXT: Running pass: AggressiveInstCombinePass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass
+; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: ReassociatePass
+; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running analysis: ScalarEvolutionAnalysis
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
+; CHECK-O-NEXT: Starting Loop pass manager run.
+; CHECK-O-NEXT: Running analysis: PassInstrumentationAnalysis
+; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass
+; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass
+; CHECK-O-NEXT: Running pass: LoopRotatePass
+; CHECK-O-NEXT: Running pass: LICM
+; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
+; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass
+; CHECK-O-NEXT: Finished Loop pass manager run.
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}>
+; CHECK-O-NEXT: Starting llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O-NEXT: Running pass: LCSSAPass
+; CHECK-O-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Starting Loop pass manager run.
+; CHECK-O-NEXT: Running pass: IndVarSimplifyPass
+; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass
+; CHECK-O-NEXT: Running pass: LoopDeletionPass
+; CHECK-O-NEXT: Finished Loop pass manager run.
+; CHECK-O-NEXT: Running pass: SROA on foo
+; CHECK-Os-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-Os-NEXT: Running pass: GVN
+; CHECK-Os-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-Os-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-Oz-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-Oz-NEXT: Running pass: GVN
+; CHECK-Oz-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-Oz-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O2-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-O2-NEXT: Running pass: GVN
+; CHECK-O2-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O2-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O3-NEXT: Running pass: MergedLoadStoreMotionPass
+; CHECK-O3-NEXT: Running pass: GVN
+; CHECK-O3-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O3-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O-NEXT: Running pass: MemCpyOptPass
+; CHECK-O1-NEXT: Running analysis: MemoryDependenceAnalysis
+; CHECK-O1-NEXT: Running analysis: PhiValuesAnalysis
+; CHECK-O-NEXT: Running pass: SCCPPass
+; CHECK-O-NEXT: Running pass: BDCEPass
+; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
+; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
+; CHECK-O23SZ-NEXT: Running pass: DSEPass
+; CHECK-O23SZ-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LICMPass{{.*}}>
+; CHECK-O23SZ-NEXT: Starting llvm::Function pass manager run
+; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass
+; CHECK-O23SZ-NEXT: Running pass: LCSSAPass
+; CHECK-O23SZ-NEXT: Finished llvm::Function pass manager run
+; CHECK-O-NEXT: Running pass: ADCEPass
+; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis
+; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: InstCombinePass
+; CHECK-O3-NEXT: Running pass: ControlHeightReductionPass on foo
+; CHECK-O3-NEXT: Running analysis: RegionInfoAnalysis on foo
+; CHECK-O3-NEXT: Running analysis: DominanceFrontierAnalysis on foo
+; CHECK-O-NEXT: Finished llvm::Function pass manager run.
+; CHECK-O-NEXT: Finished CGSCC pass manager run.
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: GlobalOptPass
+; CHECK-O-NEXT: Finished llvm::Module pass manager run.
+; CHECK-O-NEXT: Running pass: NameAnonGlobalPass
+; CHECK-O-NEXT: Running pass: PrintModulePass
+
+; Make sure we get the IR back out without changes when we print the module.
+; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr
+; CHECK-O-NEXT: entry:
+; CHECK-O-NEXT:   br label %loop
+; CHECK-O:      loop:
+; CHECK-O-NEXT:   %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+; CHECK-O-NEXT:   %iv.next = add i32 %iv, 1
+; CHECK-O-NEXT:   tail call void @bar()
+; CHECK-O-NEXT:   %cmp = icmp eq i32 %iv, %n
+; CHECK-O-NEXT:   br i1 %cmp, label %exit, label %loop
+; CHECK-O:      exit:
+; CHECK-O-NEXT:   ret void
+; CHECK-O-NEXT: }
+;
+; Ignore a bunch of intervening metadata containing profile data.
+;
+; CHECK-O: Finished llvm::Module pass manager run.
+
+declare void @bar() local_unnamed_addr
+
+define void @foo(i32 %n) local_unnamed_addr {
+entry:
+  br label %loop
+loop:
+  %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+  %iv.next = add i32 %iv, 1
+  tail call void @bar()
+  %cmp = icmp eq i32 %iv, %n
+  br i1 %cmp, label %exit, label %loop
+exit:
+  ret void
+}